the Flow Simulation and Model Analysis of Efficiency and Pressure Ratio Behaviors in GT4086 Turbocharger Compressor

Authors

  • Mohammad OMIDI School of Mechanical Engineering, Dalian University of Technology
  • Shu-jie LIU School of Mechanical Engineering, Dalian University of Technology
  • Soheil MOHTARAM Hohai University
  • Hui-tian LU South Dakota State University
  • Hong-chao ZHANG Texas Tech University

DOI:

https://doi.org/10.5755/j01.mech.26.4.23867

Keywords:

centrifugal compressor, efficiency, pressure ratio, impeller, diffuser, volute

Abstract

The present paper seeks to model and simulate the function of a centrifugal GT4082 compressor and evaluates the effects of losses in the impeller, volute, and diffuser. It is also examined the mass parameter effect on the efficiency drop at different speeds. The total and static pressure drops are also examined in the volute and diffuser. Based on the experiments, the efficiency drops in these parts modeled at different mass parameters and speeds discovered to be maximized in the volute and diffuser at a specific speed. A global minimum was observed in the overall pressure drop and a global maximum in the static pressure drop versus a mass parameter.

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Published

2020-09-17

Issue

Vol. 26 No. 4 (2020)

Section

MECHANICS OF FLUIDS AND GASES